The HP/Agilent 81632B is a single-channel optical power sensor module designed for integration into HP/Agilent lightwave measurement systems. Built around an InGaAs sensor element, it delivers precise optical power measurements across the 800 nm to 1650 nm wavelength range with ±3% accuracy in the 1200 nm to 1630 nm band. The module achieves exceptional linearity of ±0.02 dB ±20 pW across its full dynamic range from +10 dBm to -60 dBm, ensuring reliable characterization of optical components and communication systems. Measurement speed reaches 200 microseconds, enabling rapid power assessment workflows. Low polarization dependent loss and typical polarization-related uncertainty of ±0.015 dB minimize measurement errors across all signal states. Output is provided via BNC analog connector, allowing direct integration with external measurement equipment and data acquisition systems.
## Technical Specifications
• **Sensor Type**: InGaAs
• **Wavelength Range**: 800 nm to 1650 nm
• **Power Range**: +10 dBm to -80 dBm
• **Accuracy**: ±3% from 1200 nm to 1630 nm
• **Power Linearity**: ±0.02 dB ±20 pW (+10 dBm to -60 dBm)
• **Relative Uncertainty due to Polarization**: Typ. ±0.015 dB
• **Polarization Dependent Loss**: Low PDL
• **Measurement Speed**: 200 microseconds
• **Output**: BNC Analog Output connector
## Key Features
• Single-channel configuration for dedicated power measurement
• InGaAs sensor optimized for near-infrared wavelengths
• High linearity performance across dynamic range ensures minimal distortion
• Fast measurement acquisition supports high-throughput testing
• Low polarization sensitivity reduces environmental variables
## Typical Applications
• Optical power characterization in telecom and datacom systems
• Component-level testing of optical transceivers and modules
• Lightwave system calibration and verification
• Fiber-optic signal monitoring
## Compatibility & Integration
The 81632B integrates with HP/Agilent 8163A, 8164A, 8166A, and 8163B mainframes and multichannel measurement systems. The module is obsolete and no longer manufactured by Keysight.
